A bloody big encyclpedia (That I know off) had the international phone numbers for banks or government organistations that I may need to call whilst abroad, I got them before leaving.
Typically It will finish up today with a big water fight on Sukhumvit road.
You may encounter some small pockets of revellers tomorrow but will be few and far between... if you see wet road, avoid.
And the moaners in another thread crying about how songrkan is bad for businesses !
Songkran is a great boost to the Thai economy and a decent reduction in road deaths.... Whats not to like.